<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
  <head>
    <title>My JSP 'login.jsp' starting page</title>
    <link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/easyui/1.3.4/themes/default/easyui.css" />
		<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/wu.css" />
		<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/icon.css" />
		<script type="text/javascript" src="${pageContext.request.contextPath}/js/jquery-1.8.0.min.js"></script>
		<script type="text/javascript" src="${pageContext.request.contextPath}/easyui/1.3.4/jquery.easyui.min.js"></script>
		<script type="text/javascript" src="${pageContext.request.contextPath}/easyui/1.3.4/locale/easyui-lang-zh_CN.js"></script>
 <style>
			.main_bar{
				width:1350px;
				height:350px;
				margin-top:10%;
			}		
			#login_form{
				width:40%;
				height:100%;
				background-color:#112435;
				margin:0 auto;
			}
			.title{
				width:100%;
				height:55px;
				color:#ffffff;
				border-bottom:1px solid #ffffff;
				font-size:20pt;
				font-family:"微软雅黑";
				line-height:55px;
				text-align:center;				
			}
			#form_widget{
				width:100%;
				height:295px;
				background-color:#808080;
			}
			.txt{
				display:block;/*设置为独立块（换行）*/
				width:70%;
				margin:0 auto;
				height:35px;
				font-size:15pt;
				border-radius:5px;/*设置圆角样式*/
				border:0;
				padding-left:8px;
			}
			#vcode{
				height:35px;
				width:40%;
				font-size:15pt;
				margin-left:15%;
				border-radius:5px;
				border:0;
				padding-left:8px;
			}
			#code{
				color:#ffffff;/*字体颜色白色*/
				background-color:#000000;	
				font-size:20pt;
				font-family:"华康娃娃体W5";
				padding:5px 35px 10px 35px;
				margin-left:5%;		
				cursor:pointer;
			}
			#search_pass_link{
				width:70%;
				text-align:right;
				margin:0 auto;
				padding:5px;
			}
			/*层级选择器*/
			#search_pass_link a{
				color:#000000;
				text-decoration:none;				
			}
			/*伪类*/
			#search_pass_link a:hover{
				color:#ff0000;
				text-decoration:underline;
			}
			.btn{
				width:70%;
				margin-left:15%;
				height:40px;
				border:0;
				font-size:14pt;
				font-family;"微软雅黑";
				background-color:#FC5628;
				color:#ffffff;
				cursor:pointer;/*设置指针鼠标的样式*/
				border-radius:20px;/*设置圆角样式*/
				border:0;
			}	
			#copyright{
				width:100%;
				text-align:center;
				padding-top:20px;
				font-family:"微软雅黑";
				color:#e0e0e0;
			}
		</style>
		<script type="text/javascript">
			$(function(){
				var msg = $("#msg").val();
			    if(msg!=""){
				$.messager.show({
					title:'消息',
					msg:msg
				});
				$("#msg").val("");
			    }
			    });
		</script>
	</head>
	<body leftmargin="0" onload="changeImg()">
		<div class="main_bar"> 
			<div id="login_form">
				<div class="title">
				    OA系统管理登录				
				</div>	
				<form action="${pageContext.request.contextPath}/user/login" onsubmit="return check()" method="post">
				<div id="form_widget">
					<br>
					    <input type="text" placeholder="请输入用户名" id="box_name" name="name" class="txt" value="用户名" onfocus="this.value=''" onblur="if(this.value=='')this.value='用户名'"/>  
					<br>
					 <input type="password" placeholder="请输入密码" id="box_pass" name="pwd" class="txt" value="password" onfocus="this.value=''" onblur="if(this.value=='')this.value='password'"/>  
					<br>
					<input type="text" id="vcode" placeholder="验证码" value="验证码" onfocus="this.value=''" onblur="if(this.value=='')this.value='验证码'"/>
					<span id="code" title="看不清，换一张"></span>
					<div id="search_pass_link">
						
					</div>					
					<input  type="submit" value="登录" class="btn" onmouseover="this.style.backgroundColor='#FF8D00'" onmouseout="this.style.backgroundColor='#FC5628'">
					<br>
				</div>
				</form>
					
			</div>
		</div>	
	<input type="hidden" id="msg" value="${msg }">
	</body>	
	<script type="text/javascript">
		var code;//声明一个变量用于存储生成的验证码
		document.getElementById("code").onclick=changeImg;
		function changeImg(){
			//alert("换图片");
			var arrays=new Array(
				'2','3','4','5','6','7','8','9',
				'a','b','c','d','e','f','g','h','i','j',
				'k','m','n','p','q','r','s','t',
				'u','v','w','x','y','z',
				'A','B','C','D','E','F','G','H','I','J',
				'K','L','M','N','P','Q','R','S','T',
				'U','V','W','X','Y','Z'				
			);
			code='';//重新初始化验证码
			//alert(arrays.length);
			//随机从数组中获取四个元素组成验证码
			for(var i=0;i<4;i++){
			//随机获取一个数组的下标
				var r=parseInt(Math.random()*arrays.length);
				code+=arrays[r];
				//alert(arrays[r]);
			}
			//alert(code);
			document.getElementById('code').innerHTML=code;//将验证码写入指定区域
		}		
		
		//效验验证码(表单被提交时触发)
		function check(){
			//获取用户输入的验证码
			var input_code=document.getElementById('vcode').value;
			//alert(input_code+"----"+code);
			if(input_code.toLowerCase()==code.toLowerCase())
			{
				//验证码正确(表单提交)
				return true;
			}
			alert("请输入正确的验证码!");
			//验证码不正确,表单不允许提交
			return false;
		}
	</script>	
</html>